HydroBASINS lev08 watershed · #2080009250
Bassin de Ayamama Deresi
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 15 administrative regions : Arnavutkoy, Avcılar, Bahçelievler, Bakırköy, Basaksehir +10
Sub-basin area
183,9km²
Upstream area
183,9km²
Discharge
2,53m³/s
Mean elev.
68m
Administrative coverage
15 dept-equivalent regions (GADM L2)
- 37.5 km²20.3% of basin
- 33.6 km²18.2% of basin
- 19.7 km²10.7% of basin
- 18.5 km²10.0% of basin
- 15.6 km²8.4% of basin
- 14.0 km²7.6% of basin
- 13.7 km²7.4% of basin
- 10.1 km²5.5% of basin
7 moreFull L2 list
- Bayrampaşa6.5 km² · 3.5%
- Güngören5.9 km² · 3.2%
- Sultangazi1.5 km² · 0.8%
- Eyüp1.1 km² · 0.6%
- Arnavutkoy0.5 km² · 0.2%
- Avcılar0.1 km² · 0.1%
- Gaziosmanpaşa0.1 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
957 distinct species · 21 887 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Ayamama Deresi : 28 espèces reliées par 83 interactions GloBI sur 3 types (connectance 11.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
13,9°C
Annual rain
728mm
Moisture idx (CMI)
-0,20
Runoff
450mm/an
PET
915mm
AET
560mm
Mean slope
2,9°
Water table
202cm
Forest
1%
Crops
2%
Urban
99%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)